常见的左向右分流先天性心脏病及发绀型先天性心脏病的病理生理，手术的意义及时机。

Pathophysiology of common left-to-right shunt congenital heart disease and cyanotic congenital heart disease; the significance and timing of surgery.

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中心型发绀提示先天性心脏病的可能性极高。

Central cyanosis makes a congenital cardiac disorder highly likely.

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结论：上肢高血压而下肢低血压或存在差异性发绀者应疑诊本病。

Conclusions:If week pulse in the upper limbs and hypotension in the lower limbs or differential cyanosis are identified, aortic coarctation must be suspected.

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